v3.7.0.1
Retirement Plans - Significant Assumptions Used to Determine Projected Benefit Obligations (Detail)
Mar. 31, 2017
Mar. 31, 2016
United States Plans    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 4.10% 3.90%
International Plans | Minimum    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 1.50% 1.80%
Rate of compensation increase 1.50% 1.50%
International Plans | Maximum    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 3.50% 3.70%
Rate of compensation increase 4.00% 4.00%